Knockdown oven.



E. BOEKENKAMP.

KNOCKDOWN OVEN.

APPLICAUON FILED FEB. 23, 1915.

Patented June 15, 1915.

3 SHEETS-SHEET 1.

an ua-n ioz E. BOEKENKAMP.

KNOCKDOWN OVEN. APPLICATION FILED FEB-23,1915.

Patented June 15, 1915 3 SHEETS-SHEET 2- 1 Mime E. B'OEKENKAMP.

KNOCKDOWN OVEN.

APPLICATION FILED FEB. 23, 1915.

Patented June 15, 1915.

3 SHEETSSHEET 3.

wiiweoo ro EDWARD BG'EKENKAMP, GIEST; LOUIS, IEISSC UEI', ASSlG-NGB 'lG-ABIERIGAN STQVE CGI4IANY,. Q'B'S'E. LOUIS, MISSOURI, A SOBEPGBATIQN CF NEW JEESEY;

nnocnnowrr oven,

Specificationof Letters Ratemt;

Paten ed June 15; 1%1 5.

Application filed February 22, 1915. Serial no. 19,105. 7

the city of St. Louis and State of Missouri,

have invented certain new and useful" Improvements in Knockdown Ovens, of which the following is a specification, reference being had thereinto the accompanying dra.W-,

' .Myinvention relates to improvements in knock-down ovens the primary object of which is tddevise an oven, of this characterwhich may be easily and quickly put together, and when inits assembled position be perfectly solid and rigid and be as Well made for practical use as though'it Were assembled by the manufacturer.

Another object of the present improvement is to devise an oven of this character which will occupy a small amount of space and can be readily packed When in its knock-down form.

A still further object of the present improvement isto construct an oven of this kind in which the means for uniting the several sections of the oven are hiddenfrom view. 1

Other objects and advantages of the present improvement will .be set forth in the, following description and drawings in which,

Figi'u'e 1 is a perspective view of the oven in its assembled form showing the door of the oven open and the last portion of it being put in place. Fig. 2 is a perspectiveview of the parts of the oven in disassembled relation and stacked upon each other and ready for boxing and shipping. Fig. 3 is a perspective view showing the first step ofassembling the oven. Fig. 4: is a perspective view of the next step in assembling the oven and showing it ready to receive the front and back. Fig. 5 is a perspective view of the oven showing all of the parts in place and the front and back partly fitted and showing the method of locking the assembling strips. Fig. 6 is a fragmental' perspective view of a corner of the oven show.- ing two of the membersin position to receive a locking strip. Fig. 7 is afragmental sectional view of the-same portion of the oven shown in Fig. 6, and showing the at taching strip applied to the meeting of two" of the sides of the oven for, holding it't o-- gether. Fig. 8 is a perspective view of one of; theattaching 7 strips.

My improvedoven consists of six sections or parts and comprises a top 1,.bottom 2, two sides 3 and 4 respectively, and a front 5 and back 6. The top, two sides, and back. of

the oven are provided with a corrugated spaced lining 41 which provides means for insulating the interior of theoven from the atmosphere and" retaining the heat within the oven. The top 1, bottom 2, and sides 3 and 4 are allof rectangular shape, two end edges of which are provided With outwardly extending portions 8 which are bent and doubledback upon themselves at 9 to form a. portion 10 which extends at an acute angle to the portion 8. The portions 8 of these parts extend a distance beyond the corrugatedlining 7, and when the two edges of either of'these parts areplaced together so that the corners 9 will be abutting, a rectangular space 11 is left. llhe members 10 carried by two edges of the top, bottom and two sides respectively cooperate with a locking strip which provides means for uniting thesesections together and holding them in their united position. The locking strip consists of an elongated member 12 com-' prising a body portion 13 and two portions 14- extending at acute angles thereto and made integral with the body portion 13. The body portion 113 extends a short distance above and below the portions 14- to provide tongues lf the' purpose of which will be hereinafter set'f'orth.- 'When the top 1 and a side 5 are placed in the position shown in Fig. 8 (which is the first step of assembling the oven) the members 10 occupy the tions relative to each other shown in Fi 6 A locking strip of which there'are foul. slipped down over the members 10 th at the members l 'of the strip tmemhers 10 the body portion 13' oi the strip is at an angle thereto. The position of the locking strip relative to the members L) is shown in Fig. "I. p

in assembling the oven, top and one side are placed in the position shown in Fig. 3, and. locking strip inserted through their corners" as has been hereto n'e described. other side and bottom are then placed in t .epesitions shown in Fig. 4e sov that the e provided with annular extensions .4 n the'rlation to ear h other as shown in Fig. 6. Locking strips the front and back are next applied. The

front consists of a body portion 16 provided with downwardly extending flanges 17.

The corners of the body portion 16 are pro: vided with slots .18 arranged obliquely across the corners. These slots are arranged in a position to receive the extending tongues 15 of the locking strip when the body portion 16 of the front is placed upon the edges of the top, bottom and two sides so that the flanges 17 of the top may engage' l 20 the sides of the top, bottom and two sides as is readily understood.

The back 6 is made in a similar manner to the front comprising a body portion proi vided with depending flanges 19 and slots which are adapted to receive the extending tongues of the locking strips 12. When the front and back have been placed upon the top, bottom and sides so that the tongues 15 protrude through the openings 18 made in the body portion of the front and back, the tongues are then bent down upon the body portion of the front and back, as is shown in Fig. 1. The bending of the tonguesboth secures the front and-back to the top, bottom and two sides, and at the same time locks the top, bottom and two'sides together so that they cannot move longitudinally on the locking strips.

The front 5 of the oven is provided with a dbor 20 mounted upon suitable hinges 21 and provided with the usual form of handles and catches 22. The bottom 2 of the oven is also provided with the usual opening 23 which fits over the gas burners. The lining of the, two sides of the oven 3 and- 4:, are provided with. outwardly extending flanges 23 which are adapted to receive a hrfi plate 24, and two shelves 25 and 26 'which are all of usual construction.

The two top edges of the sides 3 and 4, are also provided with handles 27 which provide means for lifting the oven about. The collapsing of the oven is done in the inverse manner to the way of assembling it, as has been heretofore described, and when in its collapsed form, the parts of the oven are placed one upon the other in the following order: Front and back are first placed one on top of the other having their linings adjacent each other; the baffle plate 24 and shelves 25 and 26 are next placed. upon the front; on top of the shelves 25 and 26 are placed-the topand bottom one upon the other;'next in order;are the two sides which are placed one upon the other with their corrugated linings abutting each other. When the parts of the oven are stacked in this manner, they are found to occupy a very small amount of space so that they may be shipped in relatively small boxes.

From the foregoing description it is apparent that I- have evolved a knock-down oven of simple construction which may be quickly and easily assembled. It is also apparent that I have constructed an oven which may be assembled and held in its as- .of the said sections provided with flanges at their abutting corners, strips each one fitting over the flanges carried by the sections, said strips provided with extending tongues, the other sections rovided .with openings in the corners thereo to receive the tongues of the strips, the parts arranged 1 as and for the purpose described.

2. A knock-down oven comprising a plurality ofsections adapted to fit together, some of the said sections having flanges on their corners, locking strips engaging the said flanges, means carried by the said strips for holding the other sections of the oven to the sections having flanges at their corners.

3. A knock-down oven comprising six sections adapted to fit together, four of thesaid sections provided with flanges at their abutting corners, four strips each one fitting over,

the flanges carried by the sections, said strips provided with extending tongues, two sections provided with openings in the corners thereof to receive the tongues of the strips, the parts arranged as and for the purpose described. I

4. A.knock-down oven comprisinga plurality of sections adapted to fit together, two

edges of some of the said sections provided with outwardly extending portions, said outwapdly extending portions bent back upon themselves to form an acute angle, the said edges of each section arranged to meet-each other at right angles, a locking strip comprising a body portion having two members integral therewith and arranged converging thereto, said strip. engaging the doubled portions of the extending edges of the sec- .tions, said strips provided with tongues at their u per and lower ends, the other sec-v tions :o the oven provided with openings in their body portions to receive the extending tonguespfl-the said strips. v 5. A knocl'r' down oven comprising six sections adapted -to,fit together, two edges of four of the said sections provided with outwardly. extending flanges of triangular shape, the said triangular flanges of the sections arranged adjacent each other, locking strips of a shape to fit over the triangular flanges of the said sections, said strips provided with tongues at their ends, the other two members provided with openings in their corners to receive the tongues bent back upon the body portion of the two lastmentioned sections.

6. A. knock-clown oven comprising six rectangular sections, four of the said sections having their edges arranged at right angles to each other, each of the abutting edges of the saidsections provided withian inwardly extending flange at an angle to the body portion of each section, locking strips of a length greater than the width of the four sections, the said locking strips comprising a body portion and two flanges arranged at an angle thereto, the said flanges of a length equal to the length oi the abutting edges of the four sections. whereby the body portion a of the strips will project above and below the edges of the four sections, the said locks lag strip fitting over the inwardly bent flanges of the edges of the sections, whereby the flanges of the strip are adjacent the flanges of the edges, the other two sections provided with oblique openings at their cor-- ners adapted to receive the extending body portions 6 c the locking strips, the said extruding portions bent back upon the body .m oi the two last-mentioned sections. '7. A knock-down oven ron'iprising six rectangular sections. our oi? the said sections provided with linings spaced apart from the body portion, the or ot' the four sections to each other, two

to cd :tions provided 'u-ith [laughs extending bexond the lining thereof, the said outwardly r'fii'tntliiig flanges an inwardly bent portion at wlu z'eh v when the said sccl so that their corners are a iizr-rr will be left lit-tween H oi t l liuing, iuijiil d portion ol a leng e four sections,

ranged at converging 'angles thereto, said flanges of a length equal to the Width of the four sections, said locking strips slid down over the inner bent portions of the flanges carried by the four sections, whereby the said flanges will be adjacent the in Wardly bent portions of the flanges of the sections and be invisible from either the inside or outside of the said sections, two other sections comprising a body portion having downwardly extending flanges upon all four edges, said body portions having oblique slots in their corners to receivethe extending portions of the locking strips, downwardly extending edges of the said sections engaging the sides of the first four mentioned sections, the extending portions of the locking strips bent down upon the body portion of the last two-mentioned sections.

8. A knock-down oven comprising a plurality of sections adapted 'to fit together, members engaging the adjacent edges of some of the sections for holding them to gether, said members providing portions engaging the corners of the other sections having means for locking all the sections together.

91 A knock-down oven comprising a plurality of sections adapted to fit together members engaging the adjacent edges of some of the sections for holding them together, said members having portions extending through the body portion of the other sections and providing means for holding all of the sections together.

10. A knock-down oven comprising a plu rality of sections adapted to lit together, members engaging the adjacent edges of some of the sections for holding them togetheix said members having portions extending through the body portion oi the other :ctions adjacent their cornersproviding means for holding all of the sectl( ins together.

In testinu'iny whereof nto tllllX my signature in the presence of t .o witnesses l llfll' 

